Pith Number

pith:7WPHTIGX

pith:2002:7WPHTIGXVNBHRKXXJWOG2NFPHN

not attested not anchored not stored refs pending

Remarks on the Calculations of Charged Open String Amplitudes: the 1-loop Tadpole

Chong-Sun Chu, Rodolfo Russo, Stefano Sciuto

arxiv:hep-th/0201118 v1 · 2002-01-16 · hep-th

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WPHTIGXVNBHRKXXJWOG2NFPHN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:38:50.035153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd9e79a0d7ab4278aaf74d9c6d34af3b5f2bb347ec245856eccb43ea259fd1da

Aliases

arxiv: hep-th/0201118 · arxiv_version: hep-th/0201118v1 · doi: 10.48550/arxiv.hep-th/0201118 · pith_short_12: 7WPHTIGXVNBH · pith_short_16: 7WPHTIGXVNBHRKXX · pith_short_8: 7WPHTIGX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7WPHTIGXVNBHRKXXJWOG2NFPHN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fd9e79a0d7ab4278aaf74d9c6d34af3b5f2bb347ec245856eccb43ea259fd1da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11a5c4261d9e8fe722850f0dce979df6b86cc90b5bd6027894a89aa11cad4f23",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-01-16T10:42:08Z",
    "title_canon_sha256": "b38af2c3e8a6534e1ae61db9daf8d176754b63367f15d58650202b5cd61bbf27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0201118",
    "kind": "arxiv",
    "version": 1
  }
}